Mavic ksyrium pro road wheelsetthe mavic ksyrium pro exalith sl limited edition clincher wheelset is a great choice for riders looking to race or tackle a sportive a high performance wheel choice the kysrium features a lightweight ism 4d rim design and pairs it with the supreme stopping power of the ub control braking track this exclusive braking technology uses a chemical treatment on the aluminium alloy that slows down wear notably on the brake track it also shortens braking distance by 20